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Study of High-Accurate Frequency Estimation in 60GHz Wireless Communication System

Kun Chen1, Yingxin Zhao1, Hong Wu1 , Qiqi Wang1, Yong Liu1, Ran Tang1, Bing Liu1, and Lijun Ge2
1.Tianjin Key Laboratory of Photonics Materials and Technology for Information Science, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300071, China
2.School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China

Abstract—A high-accurate frequency estimation algorithm is proposed in the 60GHz OFDM wireless communication system. The phase offset is caused by the carrier frequency offset, and its accumulation has a linear relationship in the time. So the preamble sequence phase can be obtained by the algorithm in this paper, and then the carrier frequency offset value is calculated by the linear regression theory. The 60GHz wireless communication system simulation platform is established. In the platform, the algorithm is simulated with different carrier frequency offset, and the algorithm estimation performance is contrasted with the traditional algorithm. The results show that accuracy of the algorithm has 30dB higher than the auto-correlation algorithm, and that the BER performance of the algorithm is the same as witch in the case of no frequency offset. So the high-accuracy of frequency offset estimation is proposed by the algorithm in the 60GHz wireless communication.

Index Terms—Linear regression, frequency offset estimation, OFDM, 60GHz wireless communication

Cite: Kun Chen, Yingxin Zhao, Hong Wu, Qiqi Wang, Yong Liu, Ran Tang, Bing Liu, and Lijun Ge, "Study of High-Accurate Frequency Estimation in 60GHz Wireless Communication System," Journal of Communications, vol. 10, no. 7, pp. 474-479, 2015. Doi: 10.12720/jcm.10.7.474-479